// 阿拉伯数字转换大写
function numberParseChina(money: any) {
	//汉字的数字
	var cnNums = ['零', '壹', '贰', '叁', '肆', '伍', '陆', '柒', '捌', '玖'];
	//基本单位
	var cnIntRadice = ['', '拾', '佰', '仟'];
	//对应整数部分扩展单位
	var cnIntUnits = ['', '万', '亿', '兆'];
	//对应小数部分单位
	var cnDecUnits = ['角', '分', '毫', '厘'];
	//整数金额时后面跟的字符
	var cnInteger = '整';
	//整型完以后的单位
	var cnIntLast = '圆';
	//最大处理的数字
	var maxNum = 999999999999.9999;
	//金额整数部分
	var integerNum;
	//金额小数部分
	var decimalNum;
	//输出的中文金额字符串
	var chineseStr = '';
	//分离金额后用的数组，预定义
	var parts;
	if (money == '') {
		return '';
	}
	money = parseFloat(money);
	if (money >= maxNum) {
		//超出最大处理数字
		return '';
	}
	if (money == 0) {
		chineseStr = cnNums[0] + cnIntLast + cnInteger;
		return chineseStr;
	}
	//转换为字符串
	money = money.toString();
	if (money.indexOf('.') == -1) {
		integerNum = money;
		decimalNum = '';
	} else {
		parts = money.split('.');
		integerNum = parts[0];
		decimalNum = parts[1].substr(0, 4);
	}
	//获取整型部分转换
	if (parseInt(integerNum, 10) > 0) {
		var zeroCount = 0;
		var IntLen = integerNum.length;
		for (var i = 0; i < IntLen; i++) {
			var n = integerNum.substr(i, 1);
			var p = IntLen - i - 1;
			var q = p / 4;
			var m = p % 4;
			if (n == '0') {
				zeroCount++;
			} else {
				if (zeroCount > 0) {
					chineseStr += cnNums[0];
				}
				//归零
				zeroCount = 0;
				chineseStr += cnNums[parseInt(n)] + cnIntRadice[m];
			}
			if (m == 0 && zeroCount < 4) {
				chineseStr += cnIntUnits[q];
			}
		}
		chineseStr += cnIntLast;
	}
	//小数部分
	if (decimalNum != '') {
		var decLen = decimalNum.length;
		for (var i = 0; i < decLen; i++) {
			var n = decimalNum.substr(i, 1);
			if (n != '0') {
				chineseStr += cnNums[Number(n)] + cnDecUnits[i];
			}
		}
	}
	if (chineseStr == '') {
		chineseStr += cnNums[0] + cnIntLast + cnInteger;
	} else if (decimalNum == '') {
		chineseStr += cnInteger;
	}
	return chineseStr;
}

//金额如果有小数保留2位,为0则不保留
//金额两位小数, 订单4位小数
function unifyNumber(num: any) {
	if (!num) {
		return 0;
	} else {
		let handleNum = parseFloat(num);
		let isToFixed = handleNum.toString().includes('.') && handleNum.toString().split('.')[1].length > 2;
		if (isToFixed) {
			return Math.round(handleNum * 100) / 100;
		} else {
			return handleNum;
		}
	}
}
//订单金额保留4位小数
function unifyNumber4(num: any) {
	if (!num) {
		return 0;
	} else {
		let handleNum = parseFloat(num);
		let isToFixed = handleNum.toString().includes('.') && handleNum.toString().split('.')[1].length > 2;
		if (isToFixed) {
			return Math.round(handleNum * 10000) / 10000;
		} else {
			return handleNum;
		}
	}
}

//金额如果有小数保留3位,为0则不保留
function unifyNumberUnit(num: any) {
	if (num === '') {
		return 0;
	} else {
		let handleNum = parseFloat(num);
		let isToFixed = handleNum.toString().includes('.') && handleNum.toString().split('.')[1].length > 2;
		if (isToFixed) {
			return Math.round(handleNum * 1000) / 1000 + '元';
		} else {
			return handleNum;
		}
	}
}

function keep3point(num: any) {
	let result = Math.round(num * 1000) / 1000;
	return result;
}
function keep2point(num: any) {
	let result = Math.round(num * 100) / 100;
	return result;
}

export { unifyNumber4, numberParseChina, unifyNumber, keep3point, keep2point, unifyNumberUnit };
